An election official uses an electronic machine to register voters crowding a polling station set up under a tree on the outskirt of Kano during the presidential elections on March 28, 2015. Voting began in Nigeria’s general election but delays were reported countrywide because of technical problems in accrediting electors. There was a mixed picture across the country, with people at some polling units reporting no problems in casting their ballot from 1230 GMT but others still waiting for their identities to be checked.<br />AFP PHOTO/TOM SAATER